[petsc-users] block ILU(K) is slower than the point-wise version?

[Jed Brown]

"Kong, Fande" <fande.kong at inl.gov> writes:

> On Tue, Mar 7, 2017 at 3:16 PM, Jed Brown <jed at jedbrown.org> wrote:
>
>> Hong <hzhang at mcs.anl.gov> writes:
>>
>> > Fande,
>> > Got it. Below are what I get:
>>
>> Is Fande using ILU(0) or ILU(k)?  (And I think it should be possible to
>> get a somewhat larger benefit.)
>>
>
>
> I am using ILU(0). Will it be much better to use ILU(k>0)?

It'll be slower, but might converge faster.  You asked about ILU(k) so I
assumed you were interested in k>0.
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